OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS

IMR OpenIR

	OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS
	Y. Q. Wang; B. L. Zhou; Z. M. Wang
	1995
发表期刊	Carbon
ISSN	0008-6223
卷号	33 期号:4 页码:427-433
摘要	SiC coatings prepared by chemical vapor deposition and from polycarbosilane (PCS) solution; also, SiO2 and Al2O3 coatings by Sol-Gel method were investigated in detail, to improve the oxidation resistance of carbon fibers as important reinforcement in advanced composites. A beta-SiC coating was obtained on carbon fibers by pyrolysis of CH3SiCl3 and H-2 at 1373-1573 K. The coating thickness could be controlled according to the requirements in practice. A uniform and fine SiC coating was also obtained by immersion and pyrolysis of PCS solutions with PCS contents of 5-15 wt%, and was composed of a mixture of SiC, SiO2, and free carbon after pyrolysis in argon. Fine and dense SiO2 and Al2O3 coatings could be obtained from silica and alumina sols, respectively, under exact control of process parameters. All coatings had good effects on the oxidation resistance of carbon fibers in the sequential order of CVD SiC, PCS-SiC, SiO2, and Al2O3. A composite coating of CVD SiC and a mixing coating of SiO2 and Al2O3 was suggested to decrease defects like pores and microcracks in individual coatings to obtain the best oxidation protection for carbon fibers.
部门归属	wang, yq (reprint author), acad sinica,inst met res,shenyang 110015,peoples r china
关键词	Carbon Fibers Oxidation Resistance Coatings Glass Technology Strength Alumina Gel
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38701
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Q. Wang,B. L. Zhou,Z. M. Wang. OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS[J]. Carbon,1995,33(4):427-433.
APA	Y. Q. Wang,B. L. Zhou,&Z. M. Wang.(1995).OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS.Carbon,33(4),427-433.
MLA	Y. Q. Wang,et al."OXIDATION PROTECTION OF CARBON-FIBERS BY COATINGS".Carbon 33.4(1995):427-433.